The Equally Spaced Datapoints Function; The Register Mainframe Function; The Unregister Mainframe Function - Agilent Technologies 8163A Programming Manual

Lambda Scan Applications
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave Multichannel
System, Third Edition

The Equally Spaced Datapoints Function

The Equally Spaced Datapoints (hp816x_returnEquidistantData)
function allows you to select whether you the results will be equally
spaced by performing a linear interpolation on the wavelength point and
power measurement data, see"Equally Spaced Datapoints" on page 174
for more details.
This function is used because Lambda Scan functions make use of
Lambda Logging to log the exact wavelength that measurements were
triggered at. This results in Lambda Array wavelength points that are not
equally spaced.
N O T E Lambda Logging is not available if your Tunable Laser module firmware
revision is lower than 2.0.
Equally Spaced Datapoints is enabled as a default.

The Register Mainframe Function

Use the Register Mainframe (hp816x_registerMainframe) function to
register your mainframe as a participant in a Multi Frame Lambda Scan
operation. The mainframe must be connected to the GPIB bus and have
their Input Trigger Connector connected to the Output Trigger
Connector of the Agilent 8164A Lightwave Measurement System
mainframe that the Tunable Laser module is installed in.

The Unregister Mainframe Function

Use the Unregister Mainframe function (hp816x_unregisterMainframe)
to remove a mainframe from a Multi Frame Lambda Scan operation and
clear the driver's internal data structures.
If you use LabView 5.0 the following items should be noted:
• All multi frame functions are not re-entrant, if the driver is running and
initialized more than once, results may be unpredictable.
• To avoid wrong results, call the Unregister Mainframe function prior
to the Initialize function (hp816x_init). This is especially necessary
during program debugging, if the Close function (hp816x_close) is not
called.
The Agilent 816x VXIplug&play Instrument Driver
179